Nail guiding means



May 23, 1933.

H. PAXTON NAIL GUIDING MEANS Filed July 17, 1950 77/ Z WINVENTOR.

A I f zwm ATTORNE Y Patented Ms 23.1933

UNITED TATES PATENT-Q OFFICE HALE PAXTON, F SANGER; ASBIGNOR TO PAXTONCREDIT CORPORATION,-

' OF SANGER, GALIFOBNIA, A CORPORATION OF CALIFORNIA nan; comma mints.

Applicationflled July 17, 1980. Serial No. 468,681.

My invention relates to a nailing machine and more specifically to anailing machine for nailing boxes and for nailing cleats on the boxends. Lugboxes-used for packing a and shipping fruit are formed with theend boards enlarged in height by nailing cleats to the top edge of saidend boards. In use, lids are nailed on the top of the cleats. The objectof the cleat is the easy removal of the lid together with the cleat sothat when the box is opened it has the appearance of being "full eventhough the fruit may have settled in the box. The cleats used areusually the same approximate thickness as the thickness "of the endboards although sometimes they may be slightly thicker. It hasbecornethe practice in box construction to nailthe cleats on the box endsbefore the box is assembled and nailed. By reason of the fact that theend boards are sometimes less than three. fourths of an inch thick andbecause the grain in the Wood is gnarled or crossed, the nail driventhrough the cleat into the box end frequently runs out at the side andform what boxmakers call shiners, that is the pointed end of the nailpenetrates through the side of the box end and sometimes is ex posed andsometimes through the side oi the cfiat so that it does not enter thebox end at it 1.

V The object of my invention is to use guide means on each side oi? thewood to be nailed so that the point or a nail coming through the side'ofthe clest, or the box end is autoinatically reversed and starts thepoint away from the outside surface of the cleat or box end. @therobjects will be hereinafter disclosed.

In the drawing herewith Fig. 1 shows a front view of a part of a nailingmachine showing my device clamping the end board and the cleat togetherfor nailing. Fig. 2 is a fractional front view of the device shown inFig. 1, showing the clamping means open and in positionfor receiving thebox end and dealt Fig. 3 is a top sectional View of the device as showninFigz-l along the sectional line 33-in Fig. 1. Fig. 4 is a view of theend board with the cleat thereon showing the- -nails driven therein inbroken lines. Fig" lateral base 12, and cross supports 13.

7 that described in Patent No. 1355 225, dated April 22 1930 for aCompensating device 4a is an end view of the end board and cleat shownin Fig. 4. Fig. 5 is an enlarged view of a cross section of the end ofboard and the cleat showing the clamp in operative relation with the endboard and cleat, and show-. ing a nail driven therethrough. Figs. 6 and6a are modified forms of the clamp. Referring to the drawing, a frame isconstructed of upright posts '10 and 11,.of K

table 14 connects uprights 10 and -11, runs parallel with base 125 andispositioned a spaced distance from said base. A nail driving head 15 ispositioned above thetable l4: as hereinafter more fully set forth. Tothe driving head is attached sliding bars 16, which sliding bars areadapted to slide through bearings 17 attached to posts 10 and 11 A shaft18 extends from uprights 10 to 11 and is likewise positioned parallelwith table it. The shaft can be rotated by a wheel 19. At each end ofshalt 18 is a crankiltl which is pivotally connected with sliding hare16 by connecting arms 21 so that by the rctation of shait l8 sliding barit and driving head 15 is given a vertical reciprocat ing motion. A naildriver 22 is attached to driving head 15. The nail driving mecha= ni srncan be of the same general character as for nail drivin mechanism whichwas granted to inc. aid nail driving device can consist of a singledriver or a plurality of aligned drivers.

To the table I have attached a bracket 25 which is positioned so thatthe base is at tached to table 14, and the upright portion 26 is adaptedas a rigid guide for the sides of the end board and cleat. This guideextends slightly above the top of said end board so it likewise engages'thecleat as shown. At the top of said upright portion 1s a block 27,said block being formed with horizontal cor-' rugations 28 on the faceadjacent to the board. Bracket 25 also supports a pivot mounting 29, onwhich pivot mountingiis. .7

pivoted an upright arm 30. Arm 30 has a roller 31 ositioned on the upperend thereof.

Depen ing from driving head 15 is a cam l 32 which is adapted on themovement of the nailing head down and up to move arm 30 toward block 27,and to hold it in that position while the cleat is being nailed to theend board. Arm 30 is pulled away from said box end when cam 32 sopermits, by means of spring 33. To arm-30 arenttached blocks 34 and 35.I These blocks are mounted on stems 340 and 350, which stems passthrough holes in arm 30 and are held therein by nuts 342 and 352.Compression springs 36 and 37 encircle stems 340 and 350, one endresting against arm 30, and the other end against blocks 34 and 35. Itwill be noted that by this construction when the nailing head is moveddownward arm 30 will be moved toward the box end boards by theengagement of cam 32 with roller 31, and the cam will press blocks 34and 35 toward block 27. In .1. proper adjustment of the parts, the endboard and the cleat are clamped between said blocks.

The purpose of having two blocks, to-wit, 34 and 35 operate againstblock 27 is to compensate for the varying differences of thicknesses ofthe cleat and the end board. 1f the cleat were of the same thickness asthe end board, blocks 34 and 35 might be replaced by one blockaproximatcly the same shape as block 27. Inasmuch as block 27 ispositioned to engage both the end board and the cleat, block 34 ispositioned to engage the cleat only and block 35 is positioned to engagethe end. board only. By this means it is noted that the cleat and boardon the one side will be held flush. The. springs 36 and 37 should bestrong enough to hold the blocks 34 and 35 tightly against the cleat andthe end board, but should yield suificiently to permit of slightvariations in the thickness of said cleat and end board.

To make the device more rigid I have supported a roller 40 on an uprightsupport 41 in a position opposite to the roller 31 so that cam 32 passesbetween rollers 31 and 40.

By this device it will be noted as shown in Fig. 5 that if for anyreason a nail driven through the cleat toward. the box end board shouldemerge from the side of the cleat or board, blocks 27, 34, 01-35 wouldtend to bend the point end of the nail. so that it would re-enter thecleat or board.

As shown in Fig. (3 blocks 271, 341, and 351 can have faces planeinstead of corrugated.

In the drawing, 60 is the end board of the box, 61 is the cleat. 62represents the nails fastening the cleat to the end board, 63 is theclutch forregulating the rotation of shaft 18, and likewise tonactuating the nail driving means at will, 64 is a foot pedal leveradapted to throw clutch (33 into operativerelation or out of operativerelation.

Because of the action of the blocks 27, 34,

and 35 these may be referred to in the claims jaws. In a broad sense,the block 27, and the upright bracket portion 26 might be 0011- sideredone jaw, While the blocks 34 and 35, and the arm 30, upon which they aremounted, might be considered a second jaw cooperating therewith. I

:Having described iny invention, I claim as new and ask for LettersPatent:

1. In combination with a nailing machine having a reciprocating nailinghead, a nailing table, and means for driving nails, of nail directingmeans consisting of a fixed jaw, and a cooperating jaw adapted to bemoved toward and away from the fixed jaw, said jaws being positoned sothat they are adapted to grasp a board and a cleat adjacent to the lineof meeting of the board and cleat, said board being positioned edgewiseon the nailing table, and the cleat being positioned on the top edge ofthe board, said jaws being positioned to adapt the nail driving means todrive a nail between said jaws, said cooperating jaw being constructedof two independent parts, one part being positioned to grasp the cleat,and the second part being positioned to grasp the upper portion of theboard.

2. In combination with a nailing machine having a reciprocating nailinghead, a nailing table, and means for driving nails, of nail directingmeans consisting of a fixed jaw, and a cooperating jaw adapted to bemoved toward and away from the fixed jaw, said jaws being positioned sothat they are adapted to grasp a board and a cleat adjacent to the'lineof meeting of the board and cleat, said board being positioned edgewiseon the nailing table, and the cleat being positioned on the top edge ofthe board, said jaws being positioned to adapt the nail driving means todrive a nail into the cleat and board, and between said jaws, saidcooperating jaw being constructed of two independent parts, one partbeing positioned to grasp the cleat, and the second part beingpositioned to grasp the'board, the faws of the parts engaging the cleatand the board having corrugations thereonf 3. In combination with anailing machine having a reciprocating nailing head, a nailing table,and means for driving nails, of nail directing means consisting of afixed jaw, and a cooperating jaw adapted to be moved toward and awayfrom the fixed jaw, said jaws being positioned so that they are adaptedto grasp a board and a cleat across the line of meeting of the board andcleat, said board being positioned edgewise on the nailing table, andthe cleat being positioned on the top edge of the'board, said jaws beingpositioned with relation to the nail driving means to adapt the naildriving means'to drive a nail between said jaws through the cleat andinto the board, said cooperating jaw being constructed with anindependent faced member yieldingly attached to an arm pivotallysupported on the nailing table, said arm being normally held apart fromthe fixed jaw by yieldingmeans, and placed in operative relation andtimed by cam means actuated by the reciprocating movement of the drivinghead.

4. In combination with a nailing machine having a reciprocating nailinghead, a nailing. table, and means for driving nails, of nail directingmeans consisting of a fixed jaw, and two cooperating movable jawsadapted to be moved toward and away from the fixed jaw, said jaws beingpositioned so that they are adapted to grasp a board and a cleat atapproximately right angles to the line of meeting of the board andcleat, said board being positioned edge wise on the nailing table, andthe cleat being positioned on the top edge of the board, said jaws beingpositioned when grasping the board and cleat for the nail driving meansto drive a nail between saidfixed jaw and the cooperating jaws, saidcooperating jaws being positioned one above the other, so that the uppercooperating jaw and the fixed jaw are adapted to grasp the upper andlower portions 0 cleat, and the lower cooperating jaw and the fixed jaware adapted to grasp the board, said cooperating jaws being yieldinglymounted on a pivoted support.

5. In combination with a nailing machine having a reciprocating nailinghead, a nailing table, and means for driving nails, of nail directingmeans consisting of a fixed jaw, and two cooperating movable jawsadapted to be moved toward and away from the fixed jaw, said cooperatingjaws and fixed jaw being. adapted to grasp a board and a cleat atapproximately right angles to the line of meeting of the board andcleat, said board being positioned edgewise on the nailing table, andthe cleat being positioned on the top edge of the board, said jaws beingpositioned with relation to the nail driving means to adapt the naildriving means to drive a nail between said jaws, through the cleat andinto the board, and means for moving said cooperating .jaws toward thefixed jaw con-' sisting of cam means actuated and timedby the movementof the nailing head. i 6. In combination with a box making machinehaving a nailing tableand nait driving means, of cooperating jawspositioned adjacent to the nailing table and aligned with relation tothe nail driving means so that a. nail driven by the nail driving meanswill normally pass between said coo crating jaws, one of said aws havingrelative'movement to compenpath of travel of the driven nail and on theapproaching faces of the jaws.

7. In a nailing machine the combination of: means for supporting a pieceof shook on edge with asecond piece of shook contacting an upwarddisposed face of said first piece of shook; a pair ofjaws on oppositesides of said first piece of shook; means for driving nails downwardlythrough said second piece of shook into said first piece of shook; andmeans operating in timely relation with said nailing means for clampingsaid jaws against opposite faces of said first piece of shook close tosaid second piece of shook, there being nail deflecting surfaces onshook contacting faces of said jaws which are disposed obliquelyrelative to side faces of said shook, one of said jaws being stationary,the other being movable, and one of said jaws being yieldably supportedand including a plurality of separately yieldable shook contactingblocks.

8. In a nailing machine the combination of: means for supporting a pieceof shook on edge with a second piece of shook contacting an upwarddisposed face of said first piece of shook; a pair ofjaws on'opposi tesides of-said first piece of shook; means for driving nails downwardlythrough said second piece of shook into said first piece of shook; andmeans operating in timely relation with said nailing means for clampingsaid jaws against opposite faces of said first piece of shook close tosaid second piece of shook, there being nail deflecting surfaces onshook contacting faces ofsaid aws which are disposed obliquely relativeto side faces of said shook, one of said jaws including two yieldableshook contacting blocks, one of which engages one of said pieces ofshook and the other block the other piece ofshook.

HALE PAXTON.

sate for varying widths'of material engaged by these portions, saidcooperating jaws being provided with corrugations running approximatelyat right angles to the normal

